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Nest: Forbid adding channels during reconfiguration

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When a new channel is found during reconfiguration, do force restart
of the protocol, like with any other un-reconfigurable change.

The old behavior was that the new channel was added but remained in down
state, even if the protocol was up, so a manual protocol restart was
often necessary.

In the future this should be improved such that a reconfigurable
channel addition (e.g. direct) is accepted and channel is started,
while an un-reconfigurable addition forces protocol restart.
This commit is contained in:
Ondrej Zajicek (work) 2018-12-11 17:57:14 +01:00
parent baeacdcfd3
commit d506263da7
2 changed files with 8 additions and 2 deletions
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6
nest/proto.c
View file

@ -602,7 +602,11 @@ proto_configure_channel(struct proto *p, struct channel **pc, struct channel_con
if (!c && cf)
{
*pc = proto_add_channel(p, cf);
/* We could add the channel, but currently it would just stay in down state
until protocol is restarted, so it is better to force restart anyways. */
log(L_INFO "Cannot add channel %s.%s", p->name, cf->name);
return 0;
// *pc = proto_add_channel(p, cf);
}
else if (c && !cf)
{

4
proto/bgp/bgp.c
View file

@ -1878,7 +1878,9 @@ bgp_reconfigure(struct proto *P, struct proto_config *CF)
{
C = (struct channel *) bgp_find_channel(p, cc->afi);
same = proto_configure_channel(P, &C, &cc->c) && same;
C->stale = 0;
if (C)
C->stale = 0;
}
WALK_LIST_DELSAFE(C, C2, p->p.channels)